Support ForumSupport requests and general discussions about the File Upload plugin can be posted to the official
Support Forum.
If your question is not directly related to the File Upload plugin, you might have a better chance to get a reply by posting to Stack Overflow.

The repository also includes the jQuery XDomainRequest Transport plugin, which enables limited cross-domain AJAX requests in Microsoft Internet Explorer 8 and 9 (IE 10 supports cross-domain XHR requests).
The XDomainRequest object allows GET and POST requests only and doesn't support file uploads. It is used on the Demo to delete uploaded files from the cross-domain demo file upload service.